Finding the Fourth Proportional to 66,438,124.80, 99,657,187.20 and 60,060,832.80
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Solution
The fourth proportional to 66,438,124.80, 99,657,187.20 and 60,060,832.80 is: 90,091,249.20
Step by Step Solution
- Step 1: Write the proportion equation
66,438,124.80 : 99,657,187.20 = 60,060,832.80 : x - Step 2: Convert to fraction form
66,438,124.80/99,657,187.20 = 60,060,832.80/x - Step 3: Cross multiply
66,438,124.80x = 99,657,187.20 × 60,060,832.80 - Step 4: Simplify right side
66,438,124.80x = 5,985,493,657,737,500 - Step 5: Solve for x
x = 5,985,493,657,737,500/66,438,124.80 - Step 6: Final answer
x = 90,091,249.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.